On 22 Jan 2006 17:43:24 -0800, "Brad Guth"
wrote:

Cardman;
So that answer will only be resolved through direct observation.

Trust me, "direct observation" doesn't mean diddly squat to these
naysay fools.

I would not say that. Observation is a much better option than with
trying to refine your estimated guess.

Clearly your open mindset of a free thought process and deductively
honest intentions are going head to head against their mainstream
status quo agenda. You need a good set of ulterior motives and a butt
load worth of hidden agendas in order to work this naysay crowd of
certified brown-nosed minions.

I may be more open minded, but science is science.

As I said the technology already seems to exist to put Earth life on
an exoplanet. It would not get there any time soon, and the first
attempts my not be successful, but just as soon as that life takes
hold then you would have just seeded a planet.

Even though myself and most any open minded individual (smart or not)

Are you trying to tempt them? :-]

would have to agree with what you've contributed dozens if not hundreds
of times, whereas if I could share a portion of my new found wealth,
I'd gladly do just that with the likes of individuals that are merely
half as open mindset and willing to share and share alike as you've
been.

I think that everything that I have ever claimed has been studied to
death long before I ever got here. So it is kind of a bitch to never
be able to mention new concepts.

Mars is an unsuitable planet to terraform. Try to think more along the
lines on an early Earth.

I agree that Mars is a mostly sub-frozen fiasco.

Mars is only useful with a much larger volume of work, which does not
apply to any easy seeding concept.

Out in those distant solar systems though could well be much more
friendly planets, although the ones that we could one day walk about
on, and breath the alien air, will always be life-supporting.

Getting us out there is a much more difficult plan.

However, speaking of
"an early Earth"; would you care to start up a new topic that's
focused upon a subjective review of what's entirely possible within the
regular laws of physics and of life even as we've known it,

Well I will give it a shot, but my knowledge of pre-life planets is
somewhat limited.

They would need to have liquid water on the surface. The atmospheric
pressure should be thick and be mostly nitrogen and carbon dioxide,
where our introduced life forms would have to remove the carbon to
store in the ground and to produce methane. The temperature should
already be within the limits of Earth life due to the liquid water
matter, but that has to be offset against pressure.

The star around this planet would also need to be considered along the
line of how much radiation would reach the ground (no ozone layer
here) and if the planet is tidally locked or not.

And the last main factor I guess is to have continents, when most life
suitable exoplanets should be water worlds. Not that you cannot seed a
water world, where it is just that making advanced technology and
spaceships would be a lot more difficult.

There is some flexibility here when Earth has gone through periods of
a snowball world to a nice hot greenhouse. So there should be bacteria
here suitable for most viable exoplanets.

That I believe is all I know in terms of what would count as a
suitable pre-life planet. And should I recall correctly then these
series of TPF missions will include searches for this planet type
mostly through the carbon dioxide and water vapour.

with respect to such having arrived as ETs and/or survived from scratch
upon Venus?

ET seeding Earth is one option, but we do not yet have any indication
that this did happened.

It would be nice if any race seeding a planet did leave behind a nice
sign reading "Life here began out there", including a map to show
exactly where. The big question is just where would they put such a
sign to last such a long time?

Searching for monoliths on the Moon again I guess.

Or is that one a little too "early Earth" for your liking?

It is one of my interest areas which means that I tend to keep up with
the news.

Cardman
http://www.cardman.org
http://www.cardman.com
http://www.cardman.co.uk